pH Indicating Controller Transmitter Weatherproof-MS pH 97

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pH Indicating Controller Transmitter Weatherproof-MS pH 97 Specification

Accuracy
0.01 pH

Connection
Cable gland and screw terminals

Pressure
Suitable for atmospheric pressure; not intended for high-pressure environments

Function
pH Indicating, Controlling, and Transmitting

Size
Compact wall mountable enclosure

Output
4-20 mA current output for transmission

Input Signal
Standard pH electrode (sensor)

Measuring Range
0 to 14 pH

Enclosure
Weatherproof, MS (Mild Steel) powder-coated body

Mounting
Wall mount

Power Supply
230 VAC, 50 Hz

Display
4-digit bright red LED digital display

Operating Temperature
0C to 55C

Protection Class
IP65 (weather and dust proof)

Alarm
Inbuilt relay for process control alarms

pH Indicating Controller Transmitter Weatherproof-MS pH 97 About

FEATURE

Advanced Embedded Microcontroller Based Design
IP 65 Weatherproof Enclosure
Easy Front Key Calibration
Auto / Manual Temperature Compensation
LED indication for relay status
Set Point 4 Nos (Special Logic )
4 Digit, 1 inch High Intensity Red LED Display
pH Sensor Slope Indication (Health of pH Sensor)
4 to 20 mA DC Isolated Output
RS 485 Isolated Output (Optional)

DESCRIPTION

MicroSet pH Indicating Controller Transmitter Model MS pH 97 is used for various industrial applications. MS pH 97 is a convenient and cost-effective solution for monitoring and maintaining pH value. It can accept input from any pH sensor. MS pH 97 output is in the form of Analogue 4-20 mA DC or MODBUS RS 485 RTU (Optional). Online pH indication provided through LED is easily readable. 2 Nos Relay Outputs are provided to operate Alarm, Solenoid Valve, Pump etc. 4 Nos Setpoints for Relays can be programmed using Frontal Keypad.

Why pH Measurement is required?

To check the acidic or alkaline nature of aqueous solution. pH (Potential Hydrogen) is unit of measurement, used to determine the Acidity or Alkalinity of an aqueous solution. Practical pH scale for industrial instrumentation ranges from 0 to 14 pH. The acidic substances range from 0 to 6 and on the other end are the alkaline substances, which range from 8 to 14, with pH 7 being neutral, this is the pH of pure water which is neither very acidic nor very alkaline, is said to be neutral.

How pH is measured?

Although everyone is familiar with Litmus paper, the only reliable way to measure pH is using Potentiometric Combination electrodes. These electrodes develop a millivolts output corresponding to pH value of solution which is directly proportional to the Free Hydrogen ion concentration in an aqueous Solution. These generated raw mill volts are fed to MS pH 97 where it is processed by amplifier & reading is displayed on meter.

TECHNICAL SPECIFICATION

pH Range : 0 - 14 pH
Temperature Range : 0 to 149.9C
pH Resolution : 0.01 pH
Temperature Resolution : 0.1C
pH Accuracy : 0.01pH
Temperature Accuracy : 1C
pH Repeatability : 1 LSB
Display : 4 Digit, 1 inch Red LED
Set Point : 4 Nos (Special Logic)
Calibration : 2 Point / 3 Point
Output : 2 Isolated Relays ( 230 V AC / 5 A)
Retransmission Output : Isolated 4-20 mA DC for pH (Isolated RS 485 Optional)
Temperature Compensation : Auto (PT-100), Manual (Adjustable 0 to 149.9C)
Power Supply : 230 V AC 10%, 50 Hz
Enclosure MOC : ABS
Enclosure Protection : IP 65
Mounting : Field Mounted
Dimensions : 120 x 200 x 75 mm
Weight : 0.86 kg
APPLICATION

Water Treatment Plant (WTP)
Wastewater Treatment Plant (WWTP)
Effluent Treatment Plant (ETP)
Sewage Treatment Plant (STP)
RO Water Plant
Power Plant
Hydroponics
Chemical Industry
Textile Industry
Paper & Pulp
Beverages / Food Industry
Pharma Industry
Scrubber Application
Pigment Industry
Steel Industry
Aqua Culture

Reliable pH Monitoring and Control

Experience precise pH measurement with a high-resolution device suitable for various industrial applications. The pH 97 ensures stability and reliability, making it easier to maintain optimal process conditions.

Robust Weatherproof Construction

Housed in a powder-coated mild steel body, this transmitter-controller is designed for tough industrial environments. With an IP65 rating, it offers strong resistance to dust and water, keeping your measurements accurate even in challenging conditions.

Easy Installation and Operation

The wall-mountable compact design and clear LED digital display make setup and monitoring straightforward. Standard pH electrodes connect via cable gland and terminals, streamlining integration into existing systems.

FAQ's of pH Indicating Controller Transmitter Weatherproof-MS pH 97:

Q: How do I install the pH Indicating Controller Transmitter Weatherproof-MS pH 97?

A: The pH 97 is designed for wall mounting. Secure the enclosure using appropriate fasteners, connect the standard pH electrode sensor via the cable gland and screw terminals, and wire the 230 VAC power supply as guided by the manual.

Q: What are the main benefits of using this pH controller transmitter?

A: The main benefits include high-precision pH measurement (accuracy of 0.01 pH), integrated process control with inbuilt relay alarms, weatherproof IP65 protection, and a robust powder-coated mild steel enclosure for industrial durability.

Q: When should the device be used in a process environment?

A: The pH 97 should be used when continuous and accurate pH monitoring, control, and data transmission are critical for maintaining process quality, especially in settings exposed to moisture and dust.

Q: Where is this pH controller transmitter typically installed?

A: This device is commonly wall-mounted in process plants, water treatment facilities, laboratories, and other industrial sites in India where reliable pH control is essential under atmospheric pressure conditions.

Q: What output signal does the transmitter provide for process integration?

A: The unit provides a 4-20 mA current output, enabling easy integration with recorders, PLCs, SCADA, and other industrial automation systems for remote monitoring and control.

Q: How does the inbuilt alarm relay enhance process control?

A: The integrated relay alarm can trigger external devices or alert operators if the measured pH goes outside set parameters, ensuring timely intervention and enhanced process safety.

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